| Patents for E21B 34 - Valve arrangements for boreholes or wells (14,685) |
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| 07/03/2014 | US20140182859 Process, device, and system to cap and seal oil and gas in a riser pipe |
| 07/03/2014 | US20140182857 System and method for injecting a treatment fluid into a wellbore and a treatment fluid injection valve |
| 07/03/2014 | US20140182856 Downhole Fluid Flow Control System and Method having Dynamic Response to Local Well Conditions |
| 07/03/2014 | US20140182855 Injection device |
| 07/03/2014 | US20140182838 Multi-level sliding sleeve |
| 07/02/2014 | EP2748426A1 Sample capture prioritization |
| 07/02/2014 | EP2748419A2 Flow activated circulating valve |
| 07/02/2014 | EP2748418A1 Downhole tester valve having rapid charging capabilities and method for use thereof |
| 07/02/2014 | EP2748417A1 Autonomous fluid control device having a reciprocating valve for downhole fluid selection |
| 07/02/2014 | EP2748416A2 System and method for servicing a wellbore |
| 07/02/2014 | EP2748415A2 Variable frequency fluid oscillators for use with a subterranean well |
| 07/02/2014 | EP2748410A2 Downhole fluid flow control system having a fluidic module with a bridge network and method for use of same |
| 07/02/2014 | CN203685175U 油井防冻堵取样阀 Well antifreeze sampling valve block |
| 07/02/2014 | CN203685135U 一种电潜泵自动解除气锁的装置 An electrical submersible pump automatic discharge air lock device |
| 07/02/2014 | CN203685127U 压启式循环关断阀 Kai-cycle pressure shut-off valve |
| 07/02/2014 | CN203685126U 井下作业多功能缓冲液流阀 Downhole multifunctional buffer flow valve |
| 07/02/2014 | CN203685125U 连续油管喷砂射孔用反循环阀 Coiled tubing perforating blasting with reverse cycle valve |
| 07/02/2014 | CN203685124U 套管防倒流偏心放气阀 Backflow release valve eccentric bushing |
| 07/02/2014 | CN203685123U 抗冲蚀油嘴系统 Anti-erosion nozzle system |
| 07/02/2014 | CN203685122U 立式减震单流阀 Vertical damping check valve |
| 07/02/2014 | CN203685053U 水平井注汽、采油、以及温度压力实时监测三管同井筒采油工艺设备 Horizontal steam injection wells, oil production, as well as real-time monitoring of temperature and pressure with the wellbore three oil production equipment |
| 07/02/2014 | CN103906890A 具有侧壁流体出口的旋转运动引发式可变流阻系统及其在地层中的使用方法 Rotational motion with a fluid outlet sidewall initiator type variable flow resistance system and method of use in the formation |
| 07/02/2014 | CN103899797A 一种卡箍接头六板导流钛合金垂直单向阀 The housing board diversion titanium vertical joints six-way valve |
| 07/02/2014 | CN103899581A 一种反循环生产、反循环起水力喷射泵泵芯方法及装置 An anti-cycle production, reverse circulation from the water jet pump cartridge method and device |
| 07/02/2014 | CN103899288A 压裂滑套组件 Frac sleeve assembly |
| 07/02/2014 | CN103899277A 仿生型平衡静压的阀门 Bionic hydrostatic balance valve |
| 07/02/2014 | CN103899276A 可收回锁紧的井下工具用开关装置 Retractable locking switch device downhole tools |
| 07/02/2014 | CN103899275A 一种钻井平台套管箭式排液阀 One kind of rig drain valve casing Arrow |
| 07/02/2014 | CN103899274A 一种钻井平台套管板式排液阀 One kind of rig casing drain valve plate |
| 07/02/2014 | CN102704889B 一种气井井口用先导式电磁阀及阀芯提升机构 One kind of wellhead gas with pilot solenoid valve and the valve lift mechanism |
| 07/01/2014 | US8763707 Downhole circulating valve having a metal-to-metal seal |
| 07/01/2014 | US8763706 Self-boosting, non-elastomeric resilient seal for check valve |
| 07/01/2014 | US8763693 Sub-sea chemical injection metering valve |
| 06/26/2014 | WO2014100421A1 Downhole valve utilizing degradable material |
| 06/26/2014 | WO2014100072A1 Expandable downhole seat assembly |
| 06/26/2014 | WO2014099210A1 Fabrication and use of well-based obstruction forming object |
| 06/26/2014 | WO2014098903A1 Well flow control with acid actuator |
| 06/26/2014 | WO2014098883A1 Liquid valve for flow control devices |
| 06/26/2014 | WO2014096795A1 Self-regulating surplussing check valve |
| 06/26/2014 | WO2014094137A1 Multi-stage well isolation and fracturing |
| 06/26/2014 | WO2014094136A1 Multi-stage well isolation and fracturing |
| 06/26/2014 | WO2013154727A3 Multi-interval wellbore treatment method |
| 06/26/2014 | US20140174755 Valve |
| 06/26/2014 | US20140174751 System and Method for High Speed Hydraulic Actuation |
| 06/26/2014 | US20140174750 Liquid Valve for Flow Control Devices |
| 06/26/2014 | US20140174746 Sleeve valve |
| 06/25/2014 | EP2744974A2 Tubing pressure insensitive pressure compensated actuator for a downhole tool and method |
| 06/25/2014 | EP2744973A1 Valve for a hydrocarbon well, hydrocarbon well provided with such valve and use of such valve |
| 06/25/2014 | EP2744972A1 Selectively degradable passage restriction |
| 06/25/2014 | CN203669824U 杆式抽油泵配套防喷装置 Supporting the blowout preventer rod pump |
| 06/25/2014 | CN203669823U 一种无流阻阀门 A non-flow resistance valve |
| 06/25/2014 | CN203669822U 三元驱井口集输控制装置 Three yuan wellhead gathering drive control device |
| 06/25/2014 | CN203669821U 一种新型固、完井管柱浮阀 A new solid, completion string float valve |
| 06/25/2014 | CN203669820U 一种新型自灌式浮箍 A new self-filling float collar |
| 06/25/2014 | CN203669817U 一种新型的内防喷钻具浮阀 A new drill string within the BOP float valve |
| 06/25/2014 | CN203669814U 环状井口流程装置 Annular wellhead process equipment |
| 06/25/2014 | CN203669813U 电泵流程组合井口装置 Pump flow combination wellhead |
| 06/25/2014 | CN103890313A 具有用于井下流体选择的可动阀板的自主流体控制装置 Independent fluid has a movable valve plate for downhole fluid selection control device |
| 06/25/2014 | CN103890312A 具有往复式阀门以用于井下流体选择的自主流体控制装置 Having reciprocating valve for autonomous choice for fluid downhole fluid control device |
| 06/25/2014 | CN103890311A 防碎屑的内部管柱测试系统 Anti-debris inside the column test system |
| 06/25/2014 | CN103883750A 井口专用防爆闸阀 Wellhead explosion-proof valve |
| 06/25/2014 | CN103883284A 水下隔离阀的海底管线终端 Subsea isolation valve underwater pipeline terminal |
| 06/25/2014 | CN103883280A 多级压裂及开采控制滑套和完井尾管串结构 Multistage fracturing and completion and production control sleeve tail pipe string structure |
| 06/25/2014 | CN103883275A 一种新型节能环保注气井口装置 A new energy saving gas injection wellheads |
| 06/24/2014 | US8757275 Reclosable multi zone isolation tool and method for use thereof |
| 06/24/2014 | US8757274 Well tool actuator and isolation valve for use in drilling operations |
| 06/24/2014 | US8757273 Downhole sub with hydraulically actuable sleeve valve |
| 06/24/2014 | US8757272 Method and apparatus for precise control of wellbore fluid flow |
| 06/24/2014 | US8757268 Self centering downhole float valve for vertical and lateral wells |
| 06/24/2014 | US8757267 Pressure range delimited valve with close assist |
| 06/24/2014 | US8757252 Wellbore flow control devices comprising coupled flow regulating assemblies and methods for use thereof |
| 06/24/2014 | CA2809804A1 Sleeve valve |
| 06/24/2014 | CA2800058A1 Sleeve valve |
| 06/19/2014 | WO2014093761A2 Sliding sleeve having contracting, ringed ball seat |
| 06/19/2014 | WO2014093760A2 Sliding sleeve having inverting ball seat |
| 06/19/2014 | WO2014093758A2 Sliding sleeve having deformable ball seat |
| 06/19/2014 | WO2014093757A2 Sliding sleeve having contracting, dual segmented ball seat |
| 06/19/2014 | WO2014093755A2 Sliding sleeve having ramped, contracting, segmented ball seat |
| 06/19/2014 | WO2014093752A2 Sliding sleeve having contracting, segmented ball seat |
| 06/19/2014 | WO2014093029A1 Measurement and control system for a downhole tool |
| 06/19/2014 | WO2014092862A1 Subsea completion with a tubing spool connection system |
| 06/19/2014 | WO2014066071A4 Downhole flow control, joint assembly and method |
| 06/19/2014 | WO2014043164A3 Well treatment device, method, and system |
| 06/19/2014 | WO2014006219A3 Apparatus for thermal management of hydrocarbon fluid transport systems |
| 06/19/2014 | US20140166912 Sliding Sleeve Having Contracting, Segmented Ball Seat |
| 06/19/2014 | US20140166304 Sliding Sleeve Having Ramped, Contracting, Segmented Ball Seat |
| 06/19/2014 | US20140166303 Sliding Sleeve Having Contracting, Ringed Ball Seat |
| 06/19/2014 | US20140166302 Intelligent completion system for extended reach drilling wells |
| 06/19/2014 | US20140166295 Isolation valve with debris control and flow tube protection |
| 06/19/2014 | US20140166292 Sliding Sleeve Having Deformable Ball Seat |
| 06/19/2014 | US20140166290 Method for Individually Servicing a Plurality of Zones of a Subterranean Formation |
| 06/19/2014 | US20140166112 Sliding Sleeve Having Contracting, Dual Segmented Ball Seat |
| 06/19/2014 | US20140166111 Sliding Sleeve Having Inverting Ball Seat |
| 06/18/2014 | CN203655246U 一种原油试抽多参数油嘴 Crude oil pumping more than one kind of test parameters glib |
| 06/18/2014 | CN203655238U 深水油井液力开关工具 Deepwater oil hydraulic switch tools |
| 06/18/2014 | CN203655237U 一种气举阀 One kind of gas lift valve |
| 06/18/2014 | CN203655236U 高压差可开关方钻杆旋塞阀 High pressure difference can switch kelly cock |
| 06/18/2014 | CN203655235U 防反激式井筒隔绝阀 Anti flyback wellbore isolation valve |
| 06/18/2014 | CN203655234U 井筒隔绝阀 Wellbore isolation valve |
| 06/18/2014 | CN203655233U 一种井筒隔绝阀 One kind of wellbore isolation valve |